\begin{tabular}{l*{1}{c}}
\hline
                 &\multicolumn{1}{c}{Married outside}\\         &\multicolumn{1}{c}{own ancestry country}\\ \hline  \emph{Second stage}\\
Enrollment  &      -0.007   \\
            &     (0.041)   \\
\hline
Controls    &         Yes   \\
F-stat      &         166   \\
N           &        1507   \\
Mean of Y   &        0.09   \\
\hline
\end{tabular}
